LONDON - Scientists at the Massachusetts Institute of Technology (MIT) in Cambridge and his colleagues have come up with a nanodevice that could be used as a simple, portable water-desalination system run from a battery or on solar power, which would help to desalinate seawater in disaster zones.

But it's true that the water of the holiest among holy rivers -- the Ganga -- fails to meet the drinking and bathing standards Technology (MIT) in Cambridge and his colleagues have come up with a nanodevice that could be used as a simple,

Physicists in the United States and Germany have discovered a way to use a gallium arsenide nanodevice as a signal processor at "terahertz" speeds, the first time it's been used for this purpose and an important step forward in the new world of optical communication and computing.